A) 9%
B) 10%
C) 10.5%
D) 12%
Correct Answer: B
Solution :
Let the principal be Rs. x. |
\[\therefore \] \[{{I}_{1}}=\frac{x\times 10\times 1}{2\times 100}\]= Rs. \[\frac{x}{20}\] |
\[{{I}_{2}}=\frac{x\times 9\times 1}{3\times 100}\]= Rs. \[\frac{3x}{20}\] |
\[{{I}_{3}}=\frac{x}{6}\times \frac{12\times 1}{100}\]= Rs. \[\frac{x}{50}\] |
\[\therefore \] \[{{I}_{1}}+{{I}_{2}}+{{I}_{3}}\]= Rs. \[\left( \frac{x}{20}+\frac{3x}{100}+\frac{x}{50} \right)\] |
= Rs. \[\left( \frac{5x+3x+2x}{100} \right)\]= Rs. \[\frac{x}{10}\] |
\[\therefore \] Average annual rate =10% |
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